RECOMMENDED ETUDE BOOKS
TUBA:
BORDOGNI Complete Vocalises for Tuba: https://www.encoremupub.com/bordogni-solfeggi-for-tuba/
KOPPRASCH 60 Selected Studies for Tuba: https://www.stantons.com/sheet-music/advanced-search/results/?t=kopprasch+tuba
SNEDECOR Low Etudes for Tuba: https://www.stantons.com/sheet-music/title/low-etudes-for-tuba/15662/
BLAZHEVICH 70 Studies for BBb Tuba v.1: https://www.stantons.com/sheet-music/title/70-studies-vol-i/48185234/
EUPHONIUM:
BORDOGNI Complete Vocalises for Trombone: https://www.encoremupub.com/bordogni-mulcahy-complete-solfeggi/
KOPPRASCH 60 Selected Studies for Trombone: https://www.stantons.com/sheet-music/title/60-selected-studies-bk-1/O2895/
ARBAN Complete Method: https://www.encoremupub.com/arban-complete-method-for-trombone-and-euphonium/
CIMERA 55 Phrasing Studies for Trombone: https://cherryclassics.com/products/2531
RECOMMENDED APPS
TONAL ENERGY: https://tonalenergy.com/products/te-tuner/
RECOMMENDED READING
THE INNER GAME OF MUSIC by Barry Green: https://www.amazon.com/Inner-Game-Music-Barry-Green/dp/0385231261
OUTLIERS by Malcolm Gladwell: https://www.amazon.com/Outliers-Story-Success-Malcolm-Gladwell/dp/0316017930/ref=tmm_pap_swatch_0?_encoding=UTF8&qid=1587739387&sr=1-1
MUSICOPHILIA by Oliver Sacks: https://www.amazon.com/Musicophilia-Tales-Music-Revised-Expanded-dp-1400033535/dp/1400033535/ref=mt_paperback?_encoding=UTF8&me=&qid=1587739872
WHAT TO LISTEN FOR IN MUSIC by Aaron Copland: https://www.amazon.com/What-Listen-Music-Aaron-Copland/dp/0451226402/ref=tmm_pap_swatch_0?_encoding=UTF8&qid=1587739834&sr=1-1
ALSO SPRACH ARNOLD JACOBS by Bruce Nelson: https://www.amazon.com/Sprach-Arnold-Jacobs-Compiled-Nelson/dp/3981245628